Combine harvester
First Claim
1. A combine harvester having a threshing unit housing, a tangential-flow threshing unit installed transversely to the direction of travel and comprising a drum and a concave, an inclined conveyor entering the threshing unit housing and an inspection flap arranged in the front wall of the threshing unit housing above the inclined conveyor, the concave surrounding the drum over an arc having a sieve lining and a frame supporting the latter and comprising two longitudinal strips and two arcuate end strips, wherein the sieve lining is divided into a plurality of longitudinally abutting lining sections (25, 26, 27) having respective butt joints and which are supported at the butt joints by arcuate webs (18) of the frame (14) and are designed so as to be removable from the frame (14) in the circumferential direction and are accessible and removable through the opened inspection flap (4).
1 Assignment
0 Petitions
Accused Products
Abstract
In a combine harvester having a tangential-flow threshing unit installed transversely to the direction of travel and comprising a drum (6) and a concave which has a frame (14) and a removable sieve lining (25), an inclined conveyor (3) protruding into the threshing unit housing through the front wall (1) of the latter and an opening in this wall (1) being arranged above the inclined conveyor (3), it is proposed, in order to facilitate the installation and removal of the sieve lining (25), that the said sieve lining be divided into a plurality of longitudinally abutting lining sections which are supported at the butt joints by arcuate webs and that the sieve lining (25) and the frame (14) be designed in such a way that the sieve lining (25) is removable in the circumferential direction from the frame (14) and can be removed through the opening in the wall (1) without dismounting the inclined conveyor (3). Particularly expedient embodiment features are given for a frame (14) having, in particular, a three-part sieve lining (cf. drawing).
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Citations
7 Claims
- 1. A combine harvester having a threshing unit housing, a tangential-flow threshing unit installed transversely to the direction of travel and comprising a drum and a concave, an inclined conveyor entering the threshing unit housing and an inspection flap arranged in the front wall of the threshing unit housing above the inclined conveyor, the concave surrounding the drum over an arc having a sieve lining and a frame supporting the latter and comprising two longitudinal strips and two arcuate end strips, wherein the sieve lining is divided into a plurality of longitudinally abutting lining sections (25, 26, 27) having respective butt joints and which are supported at the butt joints by arcuate webs (18) of the frame (14) and are designed so as to be removable from the frame (14) in the circumferential direction and are accessible and removable through the opened inspection flap (4).
Specification